Today we have the chance to check out the Cooler Master ATCS 840 Full Tower Classic Case, a retake on the original ATCS designs. This lightweight aluminum design also brings in plenty of cooling with three 230mm fans, a 120mm fan and room for an additional four 120mm fans. Cooler Master certainly took their time in implementing features for this case. Some of the many features include a removable motherboard tray, dual power supply support, water-cooling support, rear exhaust fan and tool-free installation devices. Read on further to get a closer look at this simple, yet elegant case.